<template>
    <div>
    <!--面包屑导航区域-->
        <el-breadcrumb separator=">">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!--卡片区域-->
        <el-card class="box-card">
        <!--搜索和添加区域-->
            <el-row :gutter="20" style="margin:0 0 15px 0;">
                <el-col :span="8">
                    <el-input placeholder="请输入内容"
                    v-model="queryInfo.query" clearable @clear="getUserList">
                        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
                </el-col>
            </el-row>
            <!-- 用户列表区域 -->
            <el-table :data="userlist" border stripe>
                <el-table-column type="index"></el-table-column>
                <el-table-column label="姓名" prop="username"></el-table-column>
                <el-table-column label="邮箱" prop="email"></el-table-column>
                <el-table-column label="电话" prop="mobile"></el-table-column>
                <el-table-column label="角色" prop="role_name"></el-table-column>
                <el-table-column label="状态" prop="mg_state">
                    <template slot-scope="scope">
                        <!-- {{scope.row.mg_state}} -->
                        <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="180">
                    <template slot-scope="scope">
                        <!-- 修改按钮 -->
                        <el-tooltip effect="dark" content="修改" placement="top" :enterable="false">
                              <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
                        </el-tooltip>
                       <!-- 删除按钮 -->
                       <el-tooltip  effect="dark" content="删除" placement="top" :enterable="false">
                             <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUsersById(scope.row.id)"></el-button>
                        </el-tooltip>
                       <!-- 分配角色按钮 -->
                        <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                             <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>
            <!-- 分页区域 -->
            <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum"
                :page-sizes="[1, 2, 5, 10]"
                :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total">
            </el-pagination>
        </el-card>
        <!-- 添加用户的对话框 -->
        <el-dialog
            title="添加用户"
            :visible.sync="addDialogVisible"
            width="50%"
            @close="addDialogClosed">
            <!-- 内容主体区域 -->
            <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
                <el-form-item label="用户名" prop="username">
                <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <!-- 底部区域 -->
            <span slot="footer" class="dialog-footer">
            <el-button @click="addDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
        </el-dialog>
        <!-- 修改用户的对话框 -->
        <el-dialog
        title="修改用户"
        :visible.sync="editDialogVisible"
        width="50%"
        @close="editDialogClosed">
            <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
                <el-form-item label="用户名">
                <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                <el-input v-model="editForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机号" prop="mobile">
                <el-input v-model="editForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUserInfo">确 定</el-button>
            </span>
        </el-dialog>
        <!-- 分配角色的对话框 -->
        <el-dialog
            title="提示"
            :visible.sync="setRoleDialogVisible"
            width="50%"
            @close="setRoleDialogClosed">
            <div>
                <p>当前的用户：{{userInfo.username}}</p>
                <p>当前的角色：{{userInfo.role_name}}</p>
                <p>分配新角色：
                    <el-select v-model="selectedRoleId" placeholder="请选择">
                    <el-option
                        v-for="item in rolesList"
                        :key="item.id"
                        :label="item.roleName"
                        :value="item.id">
                    </el-option>
                    </el-select>
                </p>
            </div>
            <span slot="footer" class="dialog-footer">
                <el-button @click="setRoleDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
            </span>
            </el-dialog>
    </div>
</template>

<script>
export default {
    data(){
        // 验证邮箱的规则
        var checkEmail=(rule,value,cb)=>{
            const regEmail=/^[A-Za-z\d]+([-_.][A-Za-z\d]+)*@([A-Za-z\d]+[-.])+[A-Za-z\d]{2,4}$/
            if(regEmail.test(value)){
                // 合法的邮箱
                return cb()
            }
            cb(new Error('请输入合法的邮箱'))
        }
        // 验证手机号的规则
        var checkMobile=(rule,value,cb)=>{
            const regMobile=/^[1][3,4,5,7,8][0-9]{9}$/
            if(regMobile.test(value)){
                // 合法的手机号
                return cb()
            }
            cb(new Error('请输入合法的手机号'))
        }
        return{
            // 获取用户列表参数对象
            queryInfo:{ 
                query:'',
                //当前的页数
                pagenum:1,
                // 当前每页显示多少条数据
                pagesize:2
            },
            userlist:[],
            total:0,
            // 控制添加用户对话框的显示与隐藏
            addDialogVisible:false,
            // 添加用户的表单数据
            addForm:{
                username:'',
                password:'',
                email:'',
                mobile:''
            },
            // 添加表单的验证规则对象
            addFormRules:{
                username:[
                    {required:true,message:'请输入用户名',trigger:'blur'},{min:3,max:10,message:'用户名的长度在3~10个字符之间',trigger:'blur'}
                ],
                password:[
                    {required:true,message:'请输入密码',trigger:'blur'},{min:6,max:15,message:'用户名的长度在6~15个字符之间',trigger:'blur'}
                ],
                email:[
                     {required:true,message:'请输入邮箱',trigger:'blur'},{validator:checkEmail,trigger:'blur'}
                ],
                mobile:[
                     {required:true,message:'请输入手机号',trigger:'blur'},{validator:checkMobile,trigger:'blur'}
                ]
            },
            //控制修改用户对话框的显示和隐藏
            editDialogVisible:false,
            //查询到的用户信息对象
            editForm:{},
            //修改表单的验证规则对象
                editFormRules:{
                    email:[
                        {required:true,message:'请输入用户邮箱',trigger:'blur'},
                        {validator:checkEmail,trigger:'blur'}
                    ],
                    mobile:[
                         {required:true,message:'请输入用户手机',trigger:'blur'},
                         {validator:checkMobile,trigger:'blur'}
                    ]

                },
            // 控制分配角色对话框的显示与隐藏
            setRoleDialogVisible:false,
            // 需要被分配角色的用户信息
            userInfo:{},
            // 所有角色的数据列表
            rolesList:[],
            //已选中的角色id值
            selectedRoleId:''
        }
    },
    created(){
        this.getUserList()
    },
    methods:{
        async getUserList(){
            const {data:res}=await this.$http.get('users',{params:this.queryInfo})
            console.log(res);
            if(res.meta.status!==200) return this.$message.error('获取用户列表失败！')
            this.userlist=res.data.users
            this.total=res.data.total
            // this.total=res.data.total
            // console.log(res);
            console.log(this.total);
        },
        // 监听pagesize改变的事件
        handleSizeChange(newSize){
            // console.log(newSize);
            this.queryInfo.pagesize=newSize
            this.getUserList()
        },
        // 监听 页码值 改变的事件
        handleCurrentChange(newPage){
            // console.log(newPage);
            this.queryInfo.pagenum=newPage
            this.getUserList()
        },
        // 监听Switch 开关状态的改变
        async userStateChanged(userinfo){
            // console.log(userinfo);
            const {data:res}=await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
            
            if(res.meta.status!==200) {
                userinfo.mg_state=!userinfo.mg_state
                return this.$message.error('更新用户状态失败！')
            }
           this.$message.success('更新用户状态成功！')
        },
        // 监听添加用户对话框的关闭事件
        addDialogClosed(){
            this.$refs.addFormRef.resetFields()
        },
        // 点击按钮，添加新用户
        addUser(){
            this.$refs.addFormRef.validate(async vaild=>{
                // console.log(vaild);
                if(!vaild) return 
                // 可以发起添加用户的网络请求
                // console.log(this.addForm);
                 const {data:res}=await this.$http.post('users',this.addForm)
                 if(res.meta.status!=200){
                     this.$message.error('添加用户失败！')
                 }
                 this.$message.success('添加用户成功！')
                //  隐藏添加用户的对话框
                 this.addDialogVisible=false
                //  重新获取用户列表数据
                 this.getUserList()
            })
        },
        // 展示编辑用户的对话框
        async showEditDialog(id){
            const {data:res}=await this.$http.get('users/'+id)
            if(res.meta.status!==200){
                return this.$message.error('查询用户信息失败！')
            }
            this.editForm=res.data
            this.editDialogVisible=true
            // console.log(id);
            
        },
        //监听修改用户对话框的关闭事件
        editDialogClosed(){
            this.$refs.editFormRef.resetFields()
        },
        //修改用户信息并提交
        editUserInfo(){
            this.$refs.editFormRef.validate(async valid=>{
                // console.log(valid);
                if(!valid) return
                //发起修改用户信息的数据请求
                console.log(this.editForm.id);
                const {data:res}=await this.$http.put('users/' +this.editForm.id,{email:this.editForm.email,mobile:this.editForm.mobile})
                if(res.meta.status!=200){
                    return this.message.error('更新用户信息失败！')
                }
                console.log(res);
                //关闭对话框
                this.editDialogVisible=false
                // 刷新数据列表
                this.getUserList()
                // 提示修改成功
                this.$message.success('更新用户信息成功！')
            })
        },
        // 根据Id删除对应的用户信息
        async removeUsersById(id){
            //弹框询问用户是否删除用户
            const confirmResult=await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch(err => err)
            //如果用户确认删除，则返回值为字符串 confirm
            //如果用户取消了删除，则返回值为字符串 cancel
            if (confirmResult!=='confirm'){
                return this.$message.info('已经取消删除')
            }
            // console.log('确认了删除');
            const {data:res}=await this.$http.delete('users/'+id)
            if(res.meta.status!==200){
                return res.$message.error('删除用户失败！')
            }
            this.$message.success('删除用户成功！')
            this.getUserList()
        },
        // 展示分配角色的对话框
        async setRole(userInfo){
            this.userInfo=userInfo
            // 在展示对话框之前，获取所有角色的列表
            const {data:res}=await this.$http.get('roles')
            if(res.meta.status!==200){
                return this.$message.error('获取角色列表失败！')
            }
            this.rolesList=res.data
            this.setRoleDialogVisible=true
        },
        // 点击按钮，分配角色
        async saveRoleInfo(){
            if(!this.selectedRoleId){
                return this.$message.error('请选择要分配的角色！')
            }
            const {data:res}=await this.$http.put(`users/${this.userInfo.id}/role`,{
                rid:this.selectedRoleId
            })
            if(res.meta.status!==200){
                return this.$message.error('更新角色失败！')
            }
            this.$message.success('更新橘色成功！')
            this.getUserList()
            this.setRoleDialogVisible=false
        },
        // 监听分配角色对话框的关闭事件
        setRoleDialogClosed(){
            this.selectedRoleId=''
            this.userInfo={}
        }

    }
    
}

</script>

<style lang="less" scoped>

</style>